Merge "Revert "Migrating all model tests to Instrumentation tests"" into sc-v2-dev am: 204e749f06 am: 4ad2d769d0

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15667342

Change-Id: I9d9a9f2669fbe945df4800812f75f025e9c7626d